CN108346055A - Food information retroactive method based on prefabricated single-stranded list data structure - Google Patents
Food information retroactive method based on prefabricated single-stranded list data structure Download PDFInfo
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Abstract
The present invention relates to a kind of food information retroactive methods based on prefabricated single-stranded list data structure, including：Step 1 collects food information；Step 2, prepared food information source tracing file；Step 3, food information track chain synthesis；Step 4, food information are traced to the source inquiry.The present invention can put to the enterprise of each approach on record into row information in the uncertain series connection for realizing information well of agri-food supply chains approach enterprise, all linked with one another, realize association and the concatenation of tracing information.It is advantageous that the speed for inquiry of tracing to the source will not obviously be influenced by data volume, and can be self-defined to result progress of tracing to the source according to different needs, abundant information of tracing to the source, realization is quickly traced to the source.
Description
Technical field
The present invention relates to a kind of food information retroactive methods, specifically the food based on prefabricated single-stranded list data structure
Information tracing method.
Background technology
Bread is the staff of life, eats with An Weixian.There is also more problems for current China's food security, are primarily due to food operation
Classification is extensive, and access threshold is low, multi-point and wide-ranging, irregular, and supervision difficulty is larger.Therefore, country advocates using letter in recent years
Breathization means establish Safety of Food Quality retrospect system, are attempted to solve food quality peace with effective regulatory measure and management method
Full problem.However agri-food supply chains include multiple links such as production, processing, wholesale, retail, there are data source diversification, numbers
According to huge, the problems such as data structure is not known is measured, to get through each link, realize full-range retrospect, key points and difficulties be as
What effective synthesis retrospect chain simultaneously realizes information quick search of tracing to the source.
Currently, most enterprises information system, using relevant database, relational database is built upon relationship
Database on the basis of model handles the data in database by means of the mathematical concepts such as algebra of sets and method.Data knot
Structure is the operation principle and foundation stone of relevant database, and in existing research, what food information retroactive method mostly used is tree construction
（Tree）, the data structure based on tree and database index, such as patent of invention CN105046507A one kind is based on relationship type number
According to the food information retroactive method in library, it is stored in interdependent node after the information acquired during Food circulation is associated with food,
The enterprise passed through successively in the process of circulation is stored in a retrospect routing table again, it is tree-like during food tracing by establishing
Figure is tracked or traces to the relevant information of certain food.This method can greatly facilitate relevant food to pass through in entire stream
The inquiry and retrieval of information in journey, but the premise of this method is the foundation of tree construction, that is, first to know each section of tree
Relationship between point and node, and there are prodigious uncertainties, the flow direction of food during food tracing is for this point
Market orientation, it is difficult to all management bodies that food is determined in advance and the relationship between them.Moreover agri-food supply chains packet
Multiple links such as production, processing, wholesale, retail are included, data volume is very huge, the database of tree construction, and retrospect inquiry every time needs
Compare each node in tree to judge it whether in specified range, this process needs the operation of execution N steps, and (N takes
Certainly in the node of tree), performance is poor.
In conclusion since food information retrospect chain synthesis and information quick search of tracing to the source are for realizing food quality peace
Trace entirely most important, but the prior art not can solve this problem still.
Invention content
The present invention be solve the problems, such as it is existing, it is desirable to provide a kind of food information based on prefabricated single-stranded list data structure chases after
It traces back method, can realize food information retrospect chain synthesis and information quick search of tracing to the source, guarantor is provided for the quality safety of food
Barrier.
The present invention includes：
Step 1 collects food information；
Step 2, prepared food information source tracing file；
Step 3, food information track chain synthesis；
Step 4, food information are traced to the source inquiry.
Wherein, in step 1, the enterprise on agri-food supply chains is divided into single management body, referred to as one section
Point establishes management body filing and registration table, establishes food information tracking table.
Wherein, each node is by element (image of data element)+pointer (instruction following element storage location) structure
At wherein element is exactly the storage unit for storing data, and pointer is exactly the address date for connecting each node.
Wherein, when each node of food approach, record food is marched into the arena information, production information and appearance information, and master is managed in association
Body information, and in each appear on the scene corresponding data is inserted into food information tracking table.
Wherein, the prepared food information source tracing file is inserted into corresponding data into table when appearing on the scene per minor node
Meanwhile adding critical field and id that the when of tracing to the source inquiry needs.
Wherein, prepared food information source tracing file is known as a storage unit, which is made of each node, node
Data structure be that the appearance traceability code of a upper node is directed toward the traceability code of marching into the arena of next section.
Wherein, to specific traceability code trace to the source inquiry when, prefabricated food information is found according to the traceability code first and is traced back
Source file encodes, i.e., traceability code of marching into the arena is inquired and then find in the related data area of the coding, further according to traceability code of marching into the arena
Find the appearance information of a link.
Compared to the prior art, the present invention has following advantage：
1）Accurate synthesis retrospect chain：The present invention can well be realized in the case that agri-food supply chains approach enterprise is uncertain
The series connection of information puts to the enterprise of each approach on record into row information, and traceability code is generated when each link appears on the scene, and is obtained when marching into the arena
One link traceability code is simultaneously associated with a upper link information, all linked with one another, realizes association and the concatenation of tracing information.
2）Fast implement inquiry of tracing to the source.By prefabricated message file of tracing to the source, the speed for inquiry of tracing to the source is improved.For specified
Traceability code trace to the source inquiry when, prefabricated food information is found according to the traceability code first and is traced to the source document No., is being looked into this way
It there is no need to traverse entire database when inquiry, but is inquired in the related data area of the coding, finds prefabricated chase after
Trace back code and id, and relevant batch information and procedural information are found further according to traceability code and id.It is advantageous that the speed for inquiry of tracing to the source
Degree will not obviously be influenced by data volume, and can need to carry out result of tracing to the source in self-defined, abundant letter of tracing to the source according to different
Breath, realization are quickly traced to the source.
3）Information truth of tracing to the source is effective.Based on prefabricated information synthesis retrospect chain of tracing to the source, data result from actual production
The tracing information synthesized will not be had an impact with data that in the process of circulation, the later stage distorts in the process, it can greatly
The authenticity and validity of information of tracing to the source are improved, the behavior for contributing to specification company information to report improves enterprise and food is given birth to
Produce the responsibility consciousness in process.
Description of the drawings
Fig. 1 is schematic diagram of tracing to the source；
Fig. 2 is production batch number schematic diagram；
Fig. 3 is traceability code schematic diagram；
The hum pattern of tracing to the source of Fig. 4 one embodiment of the invention.
Specific implementation mode
The present invention is further described in conjunction with attached drawing.
The present embodiment provides a kind of methods for realizing food information retrospect based on prefabricated single-stranded list data structure.Single linked list is
A kind of data structure of chain type access, with the data element in the arbitrary storage unit storage linear list of a group address.In chained list
Data indicated with node, the composition of each node：Element (image of data element)+pointer (instruction successor
Plain storage location), element is exactly the storage unit for storing data, and pointer is exactly the address date for connecting each node.Prefabricated number
According to be for convenience quick search, user inquire retrospect result before, existing retrospect on prefabricated food information traceability chain
Information can not only improve the response speed of inquiry in this way, moreover it is possible to prevent enterprise in subsequent altered data.
The method of the present embodiment includes：
The first step：Establish food information tracking table.The enterprise on agri-food supply chains is divided into according to management functions type
Single management body, establishes management body filing and registration table, and each management body is known as a node.Food information is established to chase after
Track table, when each node of food approach, record food is marched into the arena information, production information and appearance information, and management body information is associated with,
And corresponding data is inserted into food information tracking table in each appear on the scene.It is as shown below that food information tracks table：
| id | in-trace-code | out-trace-code | in-id | out-id | process-id | comp-code | sys-type |
| 1 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 2 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
In above table：
1, in-trace-code indicates traceability code of marching into the arena
2, out-trace-code indicates appearance traceability code
3, in-id indicates the information table id that marches into the arena
4, out-id indicates appearance information table id
5, process-id indicates each link process information table id
6, comp-code indicates main body coding
7, sys-type indicates type of subject
Second step：Prepared food information source tracing file.That is prepared food information source tracing file, when appearing on the scene per minor node into table
While being inserted into corresponding data, the critical field and id that the when of tracing to the source inquiry needs are added in prefabricated file, can be improved in this way
It traces to the source the speed and accuracy rate of inquiry, and the arbitrary altered data of enterprise can be prevented.
Third walks：Food information tracks chain synthesis.I.e. according to single linked list principle, each management body on agri-food supply chains
For a single-stranded node, the composition of each node：(the instruction following element storage of element (image of data element)+pointer
Position).One prefabricated food information file of tracing to the source is known as a storage unit, which is made of each node, node
Data structure be that the appearance traceability code of a upper node is directed toward the traceability code of marching into the arena of next section.
| In-code | out-code | atom |
| 0 | 1 | a |
| 1 | 2 | a |
| 2 | 3 | a |
In above table：
1, In-code indicates traceability code of marching into the arena
2, out-code indicates appearance traceability code
3, atom prepared foods information source tracing document No.
4th step：Food information is traced to the source inquiry.Referring to Fig. 1, to specific traceability code trace to the source inquiry when, first according to the retrospect
Code finds prefabricated food information and traces to the source document No., in this way there is no need to traverse entire database when inquiry, but
It is inquired in the related data area of the coding, then finds traceability code of marching into the arena, a upper link is found further according to traceability code of marching into the arena
Appearance information.
Data acquisition flow is carried out first.Production batch is established in beginning of production, different production batch correspond to different volumes
Number.The production information of the production batch product is numbered with production batch and is bound.The production of the production batch can after completing
Different clients can be flowed to（That is the player whose turn comes next）, difference flow direction establish different Discharge Lots, different Discharge Lots correspond to different retrospects
Code.When product flows into customer, traceability code is obtained, customer binds the information such as the processing of product and the traceability code, processes
The different players whose turn comes next may be flowed to when appearing on the scene at sale again, different flow directions establish different sale Discharge Lots, and difference sale, which appears on the scene, to be criticized
The different traceability code of secondary correspondence.And so on, it marches into the arena bring a link traceability code into each time, appeared on the scene each time according to flow direction not
With different traceability codes is generated, all traceability codes of same source production batch bind same production batch number.Specifically：
The first step establishes production batch table in the source link of food, and different batches corresponds to different numbers, and production batch is
Node 1.
1, the manufacturing enterprise in source establishes company information table, and production batch is associated with company information；
2, referring to Fig. 2：Production batch coding rule can from food classification, business code, date of manufacture, serial number etc. into
Row considers；
3, the information such as time, input used, responsible person of production batch table record each link of food production.
Second step, the food production of the production batch are completed to enter processing link later, may flow to different clients（Under i.e.
Family）, Discharge Lot is established in the appearance of production link, Discharge Lot is node 2.
Different Discharge Lot tables is established when 1, appearing on the scene according to client's difference, Discharge Lot registers the time for competiton, appear on the scene production
Product information, customer information etc., and generate appearance product back-tracing code；
2, referring to Fig. 3, appearance product information is associated with production batch table, and traceability code is the first time demal of production batch number；
3, all clients establish company information table, and Discharge Lot is with manufacturing enterprise's information association.
Third walks, in processing link（Customer）When marching into the arena, Charge Lot is established, Charge Lot is node 3.
1, Charge Lot table is enrolled into field time, product information of marching into the arena, supplier（Upper family）Information；
2, product information of marching into the arena is associated with the Discharge Lot table of node 2, and obtains the product back-tracing code of node 2；
3, supplier（Upper family）Information is the company information of node 2, associated with company information table；
4, process information table is established, the information such as process time, input used, the responsible person of each link are recorded, and is marched into the arena
Batch table is associated.
4th step establishes processing Discharge Lot when processing link appears on the scene, and processing link Discharge Lot is node 4.
Different Discharge Lot tables is established when 1, appearing on the scene according to client's difference, Discharge Lot records the time for competiton, appear on the scene production
Product information, customer information etc., and generate appearance product back-tracing code；
2, appearance product information is associated with Charge Lot table, and traceability code is second of demal of production batch number；
3, Discharge Lot is with processing enterprise's information association.
5th step establishes consumptive link Charge Lot when consumptive link is marched into the arena, and consumptive link Charge Lot is node 5.
1, Charge Lot table is recorded into field time, product information of marching into the arena, supplier（Upper family）Information；
2, product information of marching into the arena is associated with the Discharge Lot table of node 4, and obtains the product back-tracing code of node 4；
3, supplier（Upper family）Information is the company information of node 3, associated with company information table.
Based on above-mentioned flow, this programme is expanded on further by taking pork as an example below.
Pork may pass through in reaching consumer's hand multiple links such as cultivates, butchers, is wholesale, being sold, and present case is assumed
Certain to be traced block pork P approach breeding enterprises C1, meat producing plant C2, enterprise of supermarket C3It reaches in consumer's hand.
The first step, breeding enterprise information collection.
1, breeding enterprise C1It is the source of retrospect, establishes breeding enterprise C1Management body table Table 1, warp is recorded in table
Seek the coding code1 and other record informations of main body.Management body coding rule is 8 serial numbers, it is assumed that breeding enterprise C1
Main body coding be 31000001.
2, breeding process information table Table P1 are established, are distinguished by cultivation batch, breeding process information is recorded, it is different
Cultivation batch corresponds to different batch number Num.
3, breeding process terminates, from breeding enterprise C1Appearance information table Table C1 are established when appearance, appearance information is because supporting
Batch difference and client's difference are grown, different traceability code out-code is generated.Appearance information table is by batch number Num and manages master
Body encodes code1 and is associated with breeding process information table Table P1 and management body table Table 1.
4, it is now assumed that it is n that cultivation batch 3100000116091001, which goes out number,1Product reach meat producing plant C2, appear on the scene
Shi Shengcheng traceability codes 31000001134567821989.
5, food information tracking table is established
It is retrospect source with the cultivation batch, the food information tracking table of cultivation batch name is established, to cultivate batch
For 3100000116091001, it is as follows to establish food information tracking table：
| id | in-trace-code | out-trace-code | in-id | out-id | process-id | comp-code | sys-type |
| 1 | 0 | 31000001134567821989 | Table P1 | Table C1 | Table P1 | 31000001 | 1 |
6, prepared food information source tracing file
It is retrospect source with the cultivation batch, the prefabricated file of cultivation batch name is established, to cultivate batch
For 3100000116091001, the information tracing of prefabricated cultivating link file of tracing to the source is as follows：
[{"out_trace_code":"31000001134567821989","process_id":"
7ab2d2ff3ebf40d0aa1a01ebed6eec1c","comp_code":"31000001","sys_type":"1","out_
id":"7ce59643893a4e3ebbbf544a34e198da" }]
Second step, meat producing plant information collection.
1, the product of cultivation batch 3100000116091001 reaches meat producing plant C2, establish meat producing plant C2Operation master
Body surface Table 2, its record information of the coding code2 of record management body in table.Management body coding rule is 8 bit stream water
Number, it is assumed that meat producing plant C2Main body coding be 31001234.
2, the batch products are established and reach meat producing plant C2Charge Lot table Table J2, read breeding enterprise C1It appears on the scene
Traceability code 31000001134567821989.
3, slaughtering process information table Table P2 are established in slaughtering process, are distinguished by batch is butchered, and record cultivated
Journey information, butcher batch is associated with Charge Lot table, butchers batch for one and corresponds to a Charge Lot.
4, slaughtering process terminates, from meat producing plant C2Appearance information table Table C are established when appearance2, appearance information is because appearing on the scene
Batch difference and client's difference, generate different traceability code out-code.Appearance information table is led by butchering batch number and managing
Body encodes code2 and is associated with slaughtering process information table Table P2 and management body table Table 2.
5, it is now assumed that it is n to butcher batch 31001234160910001 to go out number2Product reach supermarket C3, when appearance gives birth to
At traceability code 31001234134567812345.
6, food information tracking table is established
On the basis of being to trace the tracking of information table for the cultivating link that source is established to cultivate batch 3100000116091001,
Slaughter tache data are inserted into, it is as follows：
| id | in-trace-code | out-trace-code | in-id | out-id | process-id | comp-code | sys-type |
| 1 | 0 | 31000001134567821989 | Table J1 | Table C1 | Table J1 | 31000001 | 1 |
| 2 | 31000001134567821989 | 31001234134567812345 | Table J2 | Table C2 | Table P2 | 31001234 | 2 |
8, prepared food information source tracing file
It is being to trace the information tracing of the cultivating link that source is established to trace to the source file base to cultivate batch 3100000116091001
On plinth, it is inserted into Slaughter tache information tracing and traces to the source file, it is as follows：
[{"out_trace_code":"31000001134567821989","process_id":"
7ab2d2ff3ebf40d0aa1a01ebed6eec1c","comp_code":"31000001","sys_type":"1","out_
id":"7ce59643893a4e3ebbbf544a34e198da","in_trace_code":"
31000001134567821989","in_id":"7ab2d2ff3ebf40d0aa1a01ebed6eec1c"},{"out_
trace_code":"31001234134567812345","process_id":"
2d8472a22dc544fc8afe1764a659395b","comp_code":"31001234","sys_type":"2","out_
id":"a89a2229befd442586320e13fc879520" }]
Third walks, supermarket's company information acquisition.
2, the product for butchering batch 31001234160910001 reaches supermarket C3, establish supermarket C3Management body table
Table 3, its record information of the coding code3 of record management body in table.Management body coding rule is 8 serial numbers, false
If supermarket C3Main body coding be 31001356.
3, the batch products are established and reach supermarket C3Charge Lot table Table J3, read meat producing plant C2Appear on the scene retrospect
Code 31001234134567812345.
4, data distributing is marched into the arena to weighing-appliances such as supermarket's electronic scales, and when consumer buys commodity, Supermarket management person passes through
Electronic scale selection commodity are associated with information of marching into the arena, and printing shopping receipt is completed endowed.
5, food information tracking table is established
On the basis of being to trace the tracking of information table for the cultivating link that source is established to cultivate batch 3100000116091001,
Supermarket's link data are inserted into, it is as follows：
| id | in-trace-code | out-trace-code | in-id | out-id | process-id | comp-code | sys-type |
| 1 | 0 | 31000001134567821989 | Table J1 | Table C1 | TableP1 | 31000001 | 1 |
| 2 | 31000001134567821989 | 31001234134567812345 | Table J2 | Table C2 | Table P2 | 31001234 | 2 |
| 3 | 31001234134567812345 | 31001234134567817896 | Table J3 | 31001356 | 3 |
7, prepared food information source tracing file
It is being to trace the information tracing of the cultivating link that source is established to trace to the source file base to cultivate batch 3100000116091001
On plinth, it is inserted into supermarket's link information and traces to the source file, it is as follows：
[{"out_trace_code":"31000001134567821989","process_id":"
7ab2d2ff3ebf40d0aa1a01ebed6eec1c","comp_code":"31000001","sys_type":"1","out_
id":"7ce59643893a4e3ebbbf544a34e198da","in_trace_code":"
31000001134567821989","in_id":"7ab2d2ff3ebf40d0aa1a01ebed6eec1c"},{"out_
trace_code":"31001234134567812345","process_id":"
2d8472a22dc544fc8afe1764a659395b","comp_code":"31001234","sys_type":"2","out_
id":"a89a2229befd442586320e13fc879520","in_trace_code":31001234134567812345,"
in_id":null,{"out_trace_code":"31001234134567817896","process_id":" null ","
comp_code":"31001356","sys_type":"3"}]
4th step, retrospect chain synthesis.
One prefabricated food information file of tracing to the source is known as a storage unit, which is made of each node, section
The data structure of point is that the appearance traceability code of a upper node is directed toward the traceability code of marching into the arena of next section.
| In-code | out-code | atom |
| 0 | 31000001134567821989 | 3100000116091001 |
| 31000001134567821989 | 31001234134567812345 | 3100000116091001 |
| 31001234134567812345 | 31001234134567817896 | 3100000116091001 |
5th step, food information are traced to the source inquiry.
Consumer scans trace the traceability code 31001234134567817896 on receipt, trace to the source inquiry when, first
Prefabricated food information is found according to the traceability code to trace to the source document No. 3100000116091001, in this way when inquiry just
Entire database need not be traversed, but is inquired in the related data area of the coding, traceability code of marching into the arena then is found
31001234134567812345, the appearance information of a upper link, information of tracing to the source such as figure below institute are found further according to traceability code of marching into the arena
Show：
The innovative point of the present embodiment is：
1, prefabricated message file of tracing to the source in information gathering process：Prepared food information source tracing file, toward table when appearing on the scene per minor node
While being inserted into corresponding data in lattice, in prefabricated file addition trace to the source inquiry when the critical field that needs and id, in this way can be with
The speed and accuracy rate of inquiry of tracing to the source are improved, and the arbitrary altered data of enterprise can be prevented.
2, it is based on single linked list principle synthesis retrospect chain：According to single linked list principle, each management body on agri-food supply chains
For a single-stranded node, the composition of each node：(the instruction following element storage of element (image of data element)+pointer
Position).One prefabricated food information file of tracing to the source is known as a storage unit, which is made of each node, node
Data structure be that the appearance traceability code of a upper node is directed toward the traceability code of marching into the arena of next section.
And then the advantage of this implementation is：
1, accurate synthesis retrospect chain：Retrospect chain synthesis refers to relevant important information on link agri-food supply chains, key
The accurate transmission of the relationship and data that are between determining each enterprise.The present invention can agri-food supply chains approach enterprise not
The series connection of information is realized in the case of determination well, it is advantageous that putting on record into row information the enterprise of each approach, each
Link generates traceability code when appearing on the scene, and upper link traceability code is obtained when marching into the arena and is associated with a upper link information, all linked with one another, realizes
The association of tracing information and concatenation.
2, inquiry of tracing to the source is fast implemented.By prefabricated message file of tracing to the source, the speed for inquiry of tracing to the source is improved.For specified
Traceability code trace to the source inquiry when, prefabricated food information is found according to the traceability code first and is traced to the source document No., is being looked into this way
It there is no need to traverse entire database when inquiry, but is inquired in the related data area of the coding, finds prefabricated chase after
Trace back code and id, and relevant batch information and procedural information are found further according to traceability code and id.It is advantageous that the speed for inquiry of tracing to the source
Degree will not obviously be influenced by data volume, and can need to carry out result of tracing to the source in self-defined, abundant letter of tracing to the source according to different
Breath, realization are quickly traced to the source.
3, information truth of tracing to the source is effective.Based on prefabricated information synthesis retrospect chain of tracing to the source, data result from actual production
The tracing information synthesized will not be had an impact with data that in the process of circulation, the later stage distorts in the process, it can greatly
The authenticity and validity of information of tracing to the source are improved, the behavior for contributing to specification company information to report improves enterprise and food is given birth to
Produce the responsibility consciousness in process.
Embodiments of the present invention are described above in conjunction with accompanying drawings and embodiments, and the structure that embodiment provides is not constituted pair
The limitation of the present invention, those skilled in the art in the art can be according to needing to adjust, within the scope of the appended claims
Various deformations or amendments are made in protection domain.
Claims (7)
1. a kind of food information retroactive method based on prefabricated single-stranded list data structure, it is characterised in that including：
Step 1 collects food information；
Step 2, prepared food information source tracing file；
Step 3, food information track chain synthesis；
Step 4, food information are traced to the source inquiry.
2. a kind of food information retroactive method based on prefabricated single-stranded list data structure according to claim 1, feature
It is：In step 1, the enterprise on agri-food supply chains is divided into single management body, referred to as a node, establishes warp
Main body filing and registration table is sought, food information tracking table is established.
3. a kind of food information retroactive method based on prefabricated single-stranded list data structure according to claim 2, feature
It is：Each node is made of element (image of data element)+pointer (instruction following element storage location), wherein member
Element is exactly the storage unit for storing data, and pointer is exactly the address date for connecting each node.
4. a kind of food information retroactive method based on prefabricated single-stranded list data structure according to claim 2 or 3, special
Sign is：When each node of food approach, record food is marched into the arena information, production information and appearance information, and management body information is associated with,
And corresponding data is inserted into food information tracking table in each appear on the scene.
5. a kind of food information retroactive method based on prefabricated single-stranded list data structure according to claim 1, feature
It is：The prepared food information source tracing file, i.e., when appearing on the scene per minor node into table while insertion corresponding data, addition
Trace to the source the critical field needed when inquiring and id.
6. a kind of food information retroactive method based on prefabricated single-stranded list data structure according to claim 5, feature
It is：Prepared food information source tracing file is known as a storage unit, which is made of each node, the data knot of node
Structure is that the appearance traceability code of a upper node is directed toward the traceability code of marching into the arena of next section.
7. a kind of food information retroactive method based on prefabricated single-stranded list data structure according to claim 1, feature
It is：To specific traceability code trace to the source inquiry when, prefabricated food information file of tracing to the source is found according to the traceability code first and is compiled
Code, i.e., inquire and then find traceability code of marching into the arena in the related data area of the coding, upper one is found further according to traceability code of marching into the arena
The appearance information of link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112348535A (en) * | 2020-11-04 | 2021-02-09 | 新华中经信用管理有限公司 | Traceability application method and system based on block chain technology |
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